This work proposes a robust and efficient control approach for grid-connected solar photovoltaic (PV) systems considering non-linear and uncertain behaviour. The proposed controller is consisting of a super twisting a...
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This work proposes a robust and efficient control approach for grid-connected solar photovoltaic (PV) systems considering non-linear and uncertain behaviour. The proposed controller is consisting of a super twisting algorithm-based second-order sliding mode control. The main objective to design this controller is to achieve maximum power transfer from the solar PV system in addition to control the DC link voltage and the current injected into the grid. Uncertainties in solar PV system output are considered as the input conditions changes. The proposed controller has been tested for various test cases and performance analysis carried out. The proposed system performs very well under transient conditions and gives very fast response. Performances of the proposed controller are also verified experimentally with the help of hardware implementation under different scenarios. The developed system performs accurately to meet the objective and as well as maintain the standards defined by IEEE.
The rapid growth of Electric Vehicles (EVs) has generated concerns about the efficiency and convenience of charging infrastructure. The study proposes a novel approach to address these challenges by providing a Smart ...
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Satellites in nominally geostationary orbits possess diurnal motion which causes the apparent position of the spacecraft to wander in the sky as seen by an earth station. If uncompensated this causes a variation in th...
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Satellites in nominally geostationary orbits possess diurnal motion which causes the apparent position of the spacecraft to wander in the sky as seen by an earth station. If uncompensated this causes a variation in the performance of the communications link. The motion of the satellite therefore has to be tracked by the earth station antenna. During the past twenty years or so a considerable amount of work has gone into the development of tracking schemes for satellite communication systems. Here a review of the various techniques is presented. For each method used the principle of operation is described and the various salient features extracted. Comparisons are made where appropriate and practical implementations of the systems discussed. The application of intelligent control algorithms to tracking is also considered. The areas covered include, orbit determination, optimal estimation techniques, performance, and practical implementations. Recently introduced techniques are considered and likely future developments projected.
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